Spatial disagregation is needed when environmental models of climate, air quality, hydrology, etc. require input data at a finer scale than available or when models produce outputs at a coarser scale than required by users. Area-to-Point Kriging is a common geostatistical framework to address the problem of spatial disaggregation from block to point support. Spatial disaggregation using Area-to...

The shuttle radar topography mission (SRTM), was flow on space shuttle endeavour in February 2000, with the objective of acquiring a digital elevation model of all land between 60u north latitude and 56u south latitude, using interferometric synthetic aperture radar (InSAR) techniques. The SRTM data are distributed at horizontal resolution of 1 arc-second (,30 m) for areas within the USA and at...

The size at which nonplanar isomers of neutral, pristine gold nanoclusters become energetically favored over planar ones is still debated amongst theoreticians and experimentalists. Spectroscopy confirms planarity is preferred at sizes up to Au7, however, starting with Au8, the uncertainty remains for larger nanoclusters. Au8 computational studies have had different outcomes: the planar D4h "cl...

Partial classification popularly known as nugget discovery comes under descriptive knowledge discovery. It involves mining rules for a target class of interest. Classification “If-Then” rules are the most sought out by decision makers since they are the most comprehensible form of knowledge mined by data mining techniques. The rules have certain properties namely the rule metrics which are used...

Accuracy is more important in data classification. An elimination of noisy data, attribute and property discovery is a major consideration in the proposed research. From the overall given population the system predicts the nuggets effectively. The subpopulation and exceptional property pair which is known as outliers. With the aim of effective critical nuggets detection, the proposed WS-CNF alg...

Aircraft skin and stringer elements are typically fabricated from 2xxx 7xxx series high strength aluminum alloys. A single friction stir welding (FSW) pass using a specially designed tool with shoulder/pin diameter ratio (D/d) of 3.20 is used to produce dissimilar T-butt welds between AA2024-T4 AA7075-T6 alloys at constant travel speed 50 mm/min different rotational speeds 400, 600 800 rpm. The...